I'm looking for information on the "big Bertha" 5x7 home portrait camera. Just bought it. I wonder how many made and whats it worth? I shoot 4x5 a lot. I have a meridian 45b a newer 150mm schneider symmar lens that I like and a super graflex with an 135mm optar. this graflex has a carl ziess 70cm I don't think this lens is coated. Would the home portrait camera be pratical to shoot with? Anybody out there have one?_________________Randy